HRS – 2017-21 Tesla Model 3 Trunk Spoiler Boxed Content: 1 Piece Spoiler Double side tape. INSTALLATION TIP: Make sure the the trunk is completely clean. Warm up the 3M adhesive for proper fitment. This is an aftermarket spoiler and may need additional prep work and modification to fit perfectly. DISCLAIMER: User installs at own discretion. Before purchasing our product, we recommend reading OUR POLICY. Improper installation, swirls and light scratches on the paint are not covered under warranty.